Hey REH,
Just upgraded my CP V2 with CNC, I found that most of the brass ball link connectors that were 'pre-assembled' work their way loose with just hovering. Worth checking them all before you install and use threadlock where required, before you fit it, unlike me,
I am now in the process of taking apart my main head assembly to check rest of the links. Also make sure you use threadlock in all metal to metal parts.
Regards